.loading {
  display: block;
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 15;
  background: rgba(255, 255, 255, .5)
}

.is-hidden {
  display: none;
}

.loading-dotBox {
  margin: 400px auto 0;
  width: 300px;
  text-align: center;
}

.loading-dotBox > .text {
  margin-top: .5em;
  color: #fff;
}

.loading-dotBox > span {
  display: inline-block;
  width: 18px;
  height: 18px;
  border-radius: 100%;
  animation: bouncedelay 1.4s infinite ease-in-out;
  animation-fill-mode: both;
  background-color: #09c;
}

.loading-dotBox > .dot1 {
  animation-delay: -0.64s;
}

.loading-dotBox > .dot2 {
  animation-delay: -0.48s;
}

.loading-dotBox > .dot3 {
  animation-delay: -0.32s;
}

.loading-dotBox > .dot4 {
  animation-delay: -0.16s;
}

@keyframes bouncedelay {  0%, 80%, 100% {
  transform: scale(0.2);
  }
  40% {
  transform: scale(1.0);
  }
}